Optical image capturing system

ABSTRACT

An optical image capturing system, from an object side to an image side, comprises a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, and a sixth lens element. The first lens element has a positive refractive power and may have a convex object-side surface. The second through fifth lens elements has a refractive power and the object-side and image-side surfaces of these lens elements are aspheric. The sixth lens element has a negative refractive power and a concave image-side surface. The object-side surface and the image-side surface are aspheric, and at least one of the two surfaces has inflection points. The first through sixth lens elements has a refractive power. When specific conditions are satisfied, the optical image capturing system may has a large aperture value and a better optical path adjusting ability to acquire better imaging quality.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims the benefit of Taiwan Patent Application No.103126972, filed on Aug. 6, 2014, in the Taiwan Intellectual PropertyOffice, the disclosure of which is incorporated herein in its entiretyby reference.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present disclosure relates to an optical image capturing system, andmore particularly to a compact optical image capturing system which canbe applied to electronic products.

2. Description of the Related Art

In recent years, with the rise of portable electronic devices havingcamera functionalities, the demand for an optical image capturing systemis raised gradually. The image sensing device of ordinary photographingcamera is commonly selected from charge coupled device (CCD) orcomplementary metal-oxide semiconductor sensor (CMOS Sensor). Besides,as advanced semiconductor manufacturing technology enables theminimization of pixel size of the image sensing device, the developmentof the optical image capturing system towards the field of high pixels.Therefore, the requirement for high imaging quality is rapidly raised.

The traditional optical image capturing system of a portable electronicdevice comes with different designs, including a four-lens or afive-lens design. However, the requirement for the higher resolution andimaging quality and the requirement for a large aperture of an end user,like functionality of micro filming and night view, and a wide angle ofan end user, like self-shooting function of a preset lens, of theportable electronic device have been raised. The optical image capturingsystem with large aperture value usually has a problem with lots ofaberrations, resulting in the worse of image quality for the imageformation and the difficulty of manufacturing the optical imagecapturing system. The optical image capturing system with wide-angledesigns may be faced with a problem of increasing distortion. Theoptical image capturing system in prior arts cannot meet the requirementof the higher order camera lens module.

Therefore, how to increase an incoming light quantity of the opticallenses for image formation and enlarge the view angle of the opticallenses becomes important. Besides, it's also important to increase totalpixels and image quality for the image formation and to have a balancedesign for the compact optical image capturing system simultaneously.

SUMMARY OF THE INVENTION

The aspect of embodiment of the present disclosure directs to an opticalimage capturing system and an optical image capturing lens which usecombination of refractive powers, convex and concave surfaces ofsix-piece optical lenses (the convex or concave surface in thedisclosure denotes the geometrical shape of an image-side surface or anobject-side surface of each lens element on an optical axis) to furtherincrease an incoming light quantity of the optical image capturingsystem effectively, to increase view angle of the optical imagecapturing system, and to increase a total pixel and improve imagingquality for image formation, to be applied to minimized electronicproducts.

The term and its definition to the lens element parameter in theembodiment of the present are shown as below for further reference.

The Lens Element Parameter Related to a Length or a Height in the LensElement

A height for image formation of the optical image capturing system isdenoted by HOI. A height of the optical image capturing system isdenoted by HOS. On the optical axis, a distance from the object-sidesurface of the first lens element to the image-side surface of the sixthlens element is denoted by InTL, a distance from the image-side surfaceof the sixth lens element to the image plane is denoted by InB,InTL+InB=HOS, a distance from an aperture stop (aperture) to an imageplane is denoted by InS, a distance from the first lens element to thesecond lens element is denoted by In12 (instance), and a centralthickness of the first lens element of the optical image capturingsystem is denoted by TP1 (instance).

The Lens Element Parameter Related to a Material in the Lens Element

An Abbe number of the first lens element in the optical image capturingsystem is denoted by NA1 (instance). A refractive index of the firstlens element is denoted by Nd1 (instance).

The Lens Element Parameter Related to a View Angle in the Lens Element

A view angle is denoted by AF. Half of the view angle is denoted by HAF.A major light angle is denoted by MRA.

The Lens Element Parameter Related to Exit/Entrance Pupil in the LensElement

An entrance pupil diameter of the optical image capturing system isdenoted by HEP.

The Lens Element Parameter Related to a Depth of the Lens Element Shape

A distance in parallel with an optical axis from a maximum effectivediameter position to an axial point on the object-side surface of thesixth lens element is denoted by InRS61 (instance). A distance inparallel with an optical axis from a maximum effective diameter positionto an axial point on the image-side surface of the sixth lens element isdenoted by InRS62 (instance). A distance in parallel with an opticalaxis from an inflection point to an axial point on the object-sidesurface of the sixth lens element is Inf61 (instance). A distance inparallel with an optical axis from an inflection point to an axial pointon the image-side surface of the sixth lens element is Inf62 (instance).

The Lens Element Parameter Related to the Lens Element Shape

A critical point is a tangent point on a surface of a specific lenselement, and the tangent point is tangent to a plane perpendicular tothe optical axis and the tangent point cannot be a crossover point onthe optical axis. To follow the past, a distance perpendicular to theoptical axis between a critical point on the object-side surface of thefifth lens element and the optical axis is HVT51. A distanceperpendicular to the optical axis between a critical point on theimage-side surface of the fifth lens element and the optical axis isHVT52. A distance perpendicular to the optical axis between a criticalpoint on the object-side surface of the sixth lens element and theoptical axis is HVT61. A distance perpendicular to the optical axisbetween a critical point on the image-side surface of the sixth lenselement and the optical axis is HVT62.

The Lens Element Parameter Related to an Aberration

Optical distortion for image formation the optical image capturingsystem is denoted by ODT. TV distortion for image formation in theoptical image capturing system is denoted by TDT. Further, the range ofthe aberration offset for the view of image formation may be limited to50%˜100% field. An offset of the spherical aberration is denoted by DFS.An offset of the coma aberration is denoted by DFC.

The disclosure provides an optical image capturing system, anobject-side surface or an image-side surface of the sixth lens elementhas inflection points, such that the angle of incidence from each viewfield to the sixth lens element may be adjusted effectively and theoptical distortion and the TV distortion can be corrected as well.Besides, the surface of the sixth lens element may have a better opticalpath adjusting ability to acquire better imaging quality.

The disclosure provides an optical image capturing system, in order froman object side to an image side, including a first, a second, a third, afourth, a fifth and a sixth lens elements. The first lens element has apositive refractive power and the sixth lens element has a negativerefractive power. The object-side surface and an image-side surface ofthe first lens element are aspheric, an object-side surface and animage-side surface of the sixth lens element are aspheric, focal lengthsof the first lens through sixth lens elements are f1, f2, f3, f4, f5 andf6, respectively, a focal length of the optical image capturing systemis f, an entrance pupil diameter of the optical image capturing systemis HEP, half of a maximal view angle of the optical image capturingsystem is HAF, a distance from the object-side surface of the first lenselement to the image plane is HOS, and the following relation issatisfied: 0≦|f/f1|≦2, 1.2≦f/HEP≦2.8, 0.4≦|tan(HAF)|≦1.5 and0.5≦HOS/f≦2.5.

The disclosure provides another optical image capturing system, in orderfrom an object side to an image side, including a first, a second, athird, a fourth, a fifth and a sixth lens elements. The first lenselement with a positive refractive power may have a convex object-sidesurface adjacent to the optical axis, and an image-side surface and theobject-side surface of the first lens element are aspheric. A secondlens element has a negative refractive power. A third lens element has arefractive power. A fourth lens element has a refractive power. A fifthlens element has a refractive power. A sixth lens element has a negativerefractive power and the object-side surface and the image-side surfaceof the sixth lens element are aspheric. The object-side surface and theimage-side surface of the first lens element and the sixth lens elementare aspheric, correspondingly. Focal lengths of the first lens throughsixth lens elements are f1, f2, f3, f4, f5 and f6, respectively. A focallength of the optical image capturing system is f. An entrance pupildiameter of the optical image capturing system is HEP. Half of a maximalview angle of the optical image capturing system is HAF. A distance fromthe object-side surface of the first lens element to the image plane isHOS. Optical distortion and TV distortion for image formation in theoptical image capturing system are ODT and TDT, respectively, and thefollowing relation is satisfied: 0≦|f/f1≦2, 1.2≦f/HEP≦2.8,0.4≦|tan(HAF)|≦1.5, 0.5≦HOS/f≦2.5, |TDT|<1.5%, and |ODT|≦2.5%.

The disclosure provides another optical image capturing system, in orderfrom an object side to an image side, including a first, a second, athird, a fourth, a fifth and a sixth lens elements. The first lenselement with a positive refractive power may have a convex object-sidesurface adjacent to the optical axis, and an image-side surface and theobject-side surface of the first lens element are aspheric. A secondlens element has a negative refractive power. A third lens element has anegative refractive power. A fourth lens element has a positiverefractive power. A fifth lens element has a negative refractive power.The sixth lens element with a negative refractive power has a concaveimage-side surface adjacent to the optical axis, and an object-sidesurface and the image-side surface of the sixth lens element areaspheric. Focal lengths of the first lens through sixth lens elementsare f1, f2, f3, f4, f5 and f6, respectively. A focal length of theoptical image capturing system is f. An entrance pupil diameter of theoptical image capturing system is HEP. Half of a maximal view angle ofthe optical image capturing system is HAF. A distance from theobject-side surface of the first lens element to the image plane is HOS.Optical distortion and TV distortion for image formation in the opticalimage capturing system are ODT and TDT, respectively. The followingrelation is satisfied: 0≦|f/f1|≦2, 1.2≦f/HEP≦2.8, 0.4≦|tan(HAF)|≦1.5,0.5≦HOS/f≦2.5, |TDT|<1.5%, and |ODT|≦2.5%.

An image sensing device whose length of diagonal is less than 1/1.2 inchmay be applied to the aforementioned optical image capturing system. Abetter size of the image sensing device is 1/2.3 inch. The pixel size ofthe image sensing device is less than 1.4 (μm). A better pixel size ofthe image sensing device is less than 1.12 (μm). A best pixel size ofthe image sensing device is less than 0.9 (μm). Besides, the opticalimage capturing system can be applied to the image sensing device withan aspect ratio of 16:9.

The above optical image capturing system may be applied to a demand oftaking a photography having ten million pixels or more, such as UHD(Ultra High Definition) and QHD (Quarter High Definition), and has ahigh quality image formation.

The height of optical system (HOS) can be reduced to achieve theminimization of the optical image capturing system when an absolutevalue of f1 is larger than f6 (|f1|>f6).

When |f/f1| is satisfied with the above conditions, the arrangement ofthe refractive power of the first lens element can avoid generating theabnormal aberration that cannot be corrected. When a sum of |f2|, |f3|,|f4| and |f5| is larger than a sum of |f1| and |f6|, at least one of thesecond through fifth lens elements has a weak positive refractive poweror a weak negative refractive power. The weak refractive power indicatesan absolute value of the focal length of a specific lens element isgreater than 10. When at least one of the second through fifth lenselements has the weak positive refractive power, the positive refractivepower of the first lens element may be shared, such that the unnecessaryaberration will not appear too early. On the contrary, when at least oneof the second through fifth lens elements has the weak negativerefractive power, the aberration of the optical image capturing systemcan be corrected and fine tuned.

The sixth lens element with a negative refractive power may have aconcave image-side surface. Hereby, the back focal length is reduced formaintaining the miniaturization, so as to miniaturize the lens elementeffectively. In addition, at least one of the object-side and theimage-side surfaces of the sixth lens elements may have at least oneinflection point, such that the angle of incident with incoming lightfrom an off-axis view field can be suppressed effectively and theaberration in the off-axis view field can be corrected further.

BRIEF DESCRIPTION OF THE DRAWINGS

The detailed structure, operating principle and effects of the presentdisclosure will now be described in more details hereinafter withreference to the accompanying drawings that show various embodiments ofthe present disclosure as follows.

FIG. 1A is a schematic view of the optical image capturing systemaccording to the first embodiment of the present application.

FIG. 1B is longitudinal spherical aberration curves, astigmatic fieldcurves, and an optical distortion curve of the optical image capturingsystem in the order from left to right according to the first embodimentof the present application.

FIG. 1C is a TV distortion grid of the optical image capturing systemaccording to the first embodiment of the present application.

FIG. 2A is a schematic view of the optical image capturing systemaccording to the second embodiment of the present application.

FIG. 2B is longitudinal spherical aberration curves, astigmatic fieldcurves, and an optical distortion curve of the optical image capturingsystem in the order from left to right according to the secondembodiment of the present application.

FIG. 2C is a TV distortion grid of the optical image capturing systemaccording to the second embodiment of the present application.

FIG. 3A is a schematic view of the optical image capturing systemaccording to the third embodiment of the present application.

FIG. 3B is longitudinal spherical aberration curves, astigmatic fieldcurves, and an optical distortion curve of the optical image capturingsystem in the order from left to right according to the third embodimentof the present application.

FIG. 3C is a TV distortion grid of the optical image capturing systemaccording to the third embodiment of the present application.

FIG. 4A is a schematic view of the optical image capturing systemaccording to the fourth embodiment of the present application.

FIG. 4B is longitudinal spherical aberration curves, astigmatic fieldcurves, and an optical distortion curve of the optical image capturingsystem in the order from left to right according to the fourthembodiment of the present application.

FIG. 4C is a TV distortion grid of the optical image capturing systemaccording to the fourth embodiment of the present application.

FIG. 5A is a schematic view of the optical image capturing systemaccording to the fifth embodiment of the present application.

FIG. 5B is longitudinal spherical aberration curves, astigmatic fieldcurves, and an optical distortion curve of the optical image capturingsystem in the order from left to right according to the fifth embodimentof the present application.

FIG. 5C is a TV distortion grid of the optical image capturing systemaccording to the fifth embodiment of the present application

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Reference will now be made in detail to the exemplary embodiments of thepresent disclosure, examples of which are illustrated in theaccompanying drawings. Therefore, it is to be understood that theforegoing is illustrative of exemplary embodiments and is not to beconstrued as limited to the specific embodiments disclosed, and thatmodifications to the disclosed exemplary embodiments, as well as otherexemplary embodiments, are intended to be included within the scope ofthe appended claims. These embodiments are provided so that thisdisclosure will be thorough and complete, and will fully convey theinventive concept to those skilled in the art. The relative proportionsand ratios of elements in the drawings may be exaggerated or diminishedin size for the sake of clarity and convenience in the drawings, andsuch arbitrary proportions are only illustrative and not limiting in anyway. The same reference numbers are used in the drawings and thedescription to refer to the same or like parts.

It will be understood that, although the terms ‘first’, ‘second’,‘third’, etc., may be used herein to describe various elements, theseelements should not be limited by these terms. The terms are used onlyfor the purpose of distinguishing one component from another component.Thus, a first element discussed below could be termed a second elementwithout departing from the teachings of embodiments. As used herein, theterm “or” includes any and all combinations of one or more of theassociated listed items.

An optical image capturing system, in order from an object side to animage side, includes a first, a second, a third, a fourth, a fifth and asixth lens elements with refractive powers. The optical image capturingsystem may further include an image sensing device which is disposed onan image plane.

A ratio of the focal length f of the optical image capturing system to afocal length fp of each of lens elements with a positive refractivepower is PPR. A ratio of the focal length f of the optical imagecapturing system to a focal length fn of each of lens elements with anegative refractive power is NPR. A sum of the PPR of all lens elementswith positive refractive powers is ΣPPR. A sum of the NPR of all lenselements with negative refractive powers is ΣNPR. It is beneficial tocontrol the total refractive power and the total length of the opticalimage capturing system when following conditions are satisfied: 0.5≦ΣPPR/|Σ NPR|≦2.5. Preferably, the following relation may be satisfied:1≦Σ PPR/|Σ NPR|≦2.0.

Height of the optical image capturing system is HOS. When the ratio ofHOS/f is closed to 1, it's favorable for manufacturing a minimized andultra-high pixel optical image capturing system.

In an embodiment of the optical image capturing system, the first, thefourth and the fifth lens elements may have positive refractive powers.A focal length of the first lens element is f1. A focal length of thefourth lens element is f4. A focal length of the fifth lens element isf5. The following relation is satisfied: 0<(f/f1)+(f/f4)+(f/f5)≦5 andf1/(f1+f4+f5)≦0.85. Preferably, the following relation may be satisfied:0<(f/f1)+(f/f4)+(f/f5)≦4.0 and 0.01≦f1/(f1+f4+f5)≦0.5. Hereby, theability of focusing of the optical image capturing system can becontrolled helpfully and the positive refractive power of the opticalimage capturing system can be allocated properly and the early generatedsignificant aberrations can be suppressed.

The first lens element has a positive refractive power and a convexobject-side surface and may have a concave image-side surface. Hereby,the strength of the positive refractive power of the first lens elementmay be fine-tuned to reduce the total length of the optical imagecapturing system.

The second lens element may have a negative refractive power and aconcave image-side surface. Hereby, the aberration generated by thefirst lens element may be corrected.

The third lens element may have a negative refractive power and a convexobject-side surface. Hereby, the aberration generated by the first lenselement may be corrected.

The fourth lens element may have a positive refractive power and aconvex image-side surface. Hereby, the positive refractive power of thefirst lens element may be shared, to avoid the longitudinal sphericalaberration to increase abnormally and to decrease the sensitivity of theoptical image capturing system.

The fifth lens element may have a positive refractive power. Hereby, thepositive refractive power of the first lens element may be shared andthe spherical aberration may be improved by adjusting the angle ofincidence from each view field to the fifth lens element effectively.

The sixth lens element has a negative refractive power and may have aconcave image-side surface. Hereby, the back focal length is reduced formaintaining the miniaturization, so as to miniaturize the lens elementeffectively. In addition, at least one of the object-side and theimage-side surfaces of the sixth lens elements may have at least oneinflection point, such that the angle of incident with incoming lightfrom an off-axis view field may be suppressed effectively and theaberration in the off-axis view field can be corrected further.Preferably, both of the object-side and the image-side surfaces of thesixth lens element have at least one inflection point.

The optical image capturing system may further include an image sensingdevice which is disposed on an image plane. Half of a diagonal of aneffective detection field of the image sensing device (imaging height orthe maximum image height of the optical image capturing system) is HOI.A distance on the optical axis from the object-side surface of the firstlens element to the image plane is HOS. The following relation issatisfied: HOS/HOI≦3 and 0.5≦HOS/f≦2.5. Preferably, the followingrelation may be satisfied: 1≦HOS/HOI≦2.5 and 1≦HOS/f≦2. Hereby, theminiaturization of the optical image capturing system can be maintainedeffectively, to be carried by lightweight portable electronic devices.

In addition, in the optical image capturing system of the disclosure,according to different requirements, at least one aperture stop may bearranged for reducing stray light and improving the image quality.

In the optical image capturing system of the disclosure, the aperturestop may be a front or middle aperture. The front aperture is theaperture stop between a photographed object and the first lens element.The middle aperture is the aperture stop between the first lens elementand the image plane. If the aperture stop is the front aperture, alonger distance between the exit pupil and the image plane of theoptical image capturing system can be formed, such that more opticalelements can be disposed in the optical image capturing system and theeffect of receiving images of the image sensing device can be raised. Ifthe aperture stop is the middle aperture, the view angle of the opticalimage capturing system can be expended, such that the optical imagecapturing system has the same advantage that is owned by wide anglecameras. A distance from the aperture stop to the image plane is InS.The following relation is satisfied: 0.6≦InS/HOS≦1.1. Preferably, thefollowing relation may be satisfied: 0.8≦InS/HOS≦1. Hereby, features ofmaintaining the minimization for the optical image capturing system andhaving wide-angle are available simultaneously.

In the optical image capturing system of the disclosure, a distance fromthe object-side surface of the first lens element to the image-sidesurface of the sixth lens element is InTL. A total central thickness ofall lens elements with a refractive power on the optical axis is ΣTP.The following relation is satisfied: 0.45≦Σ TP/InTL≦0.95. Hereby,contrast ratio for the image formation in the optical image capturingsystem and defect-free rate for manufacturing the lens element can begiven consideration simultaneously, and a proper back focal length isprovided to dispose others optical components in the optical imagecapturing system.

A curvature radius of the object-side surface of the first lens elementis R1. A curvature radius of the image-side surface of the first lenselement is R2. The following relation is satisfied: 0.1≦|R1/R2|≦0.5.Hereby, the first lens element may have proper strength of the positiverefractive power, to avoid the longitudinal spherical aberration toincrease too fast. Preferably, the following relation may be satisfied:0.2≦|R1/R2|≦0.45.

A curvature radius of the object-side surface of the sixth lens elementis R11. A curvature radius of the image-side surface of the sixth lenselement is R12. The following relation is satisfied:−10<(R11−R12)/(R11+R12)<30. Hereby, the astigmatic generated by theoptical image capturing system can be corrected beneficially.

A distance between the first lens element and the second lens element onthe optical axis is IN12. The following relation is satisfied:0<IN12/f≦0.25. Preferably, the following relation may be satisfied:0.01≦IN12/f≦0.20. Hereby, the aberration of the lens elements isimproved and the performance is increased.

Central thicknesses of the first lens element and the second lenselement on the optical axis are TP1 and TP2, respectively. The followingrelation is satisfied: 1≦(TP1+IN12)/TP2≦10. Hereby, the sensitivityproduced by the optical image capturing system can be controlled and theperformance can be increased.

Central thicknesses of the fifth lens element and the sixth lens elementon the optical axis are TP5 and TP6, respectively, and a distancebetween the fifth lens element and the sixth lens element on the opticalaxis is IN56. The following relation is satisfied: 0.2≦(TP6+IN56)/TP5<3.Hereby, the sensitivity produced by the optical image capturing systemcan be controlled and the total height of the optical image capturingsystem can be reduced.

Central thicknesses of the third lens element, the fourth lens element,and the fifth lens element on the optical axis are TP3, TP4, and TP5,respectively. A distance between the third lens element and the fourthlens element on the optical axis is IN34. A distance between the fourthlens element and the fifth lens element on the optical axis is IN45. Adistance from the object-side surface of the first lens element to theimage-side surface of the sixth lens element is InTL. The followingrelation is satisfied: 0.1≦(TP3+TP4+TP5)/Σ TP≦0.8. Preferably, thefollowing relation may be satisfied: 0.4≦(TP3+TP4+TP5)/Σ TP≦0.8. Hereby,the aberration generated by the process of moving the incident light canbe adjusted slightly layer upon layer, and the total height of theoptical image capturing system can be reduced.

A distance in parallel with an optical axis from a maximum effectivediameter position to an axial point on the object-side surface of thefifth lens element is InRS51 (the InRS51 is positive if the horizontaldisplacement is toward the image-side surface, or the InRS51 is negativeif the horizontal displacement is toward the object-side surface). Adistance in parallel with an optical axis from a maximum effectivediameter position to an axial point on the image-side surface of thefifth lens element is InRS52. A central thickness of the fifth lenselement is TP5. The following relation is satisfied: 0≦|InRS52|/TP5<5.Hereby, it's favorable for manufacturing and forming the lens elementand for maintaining the minimization for the optical image capturingsystem.

A distance perpendicular to the optical axis between a critical point onthe object-side surface of the fifth lens element and the optical axisis HVT51. A distance perpendicular to the optical axis between acritical point on the image-side surface of the fifth lens element andthe optical axis is HVT52. The following relation is satisfied:0≦HVT51/HVT52. Hereby, the aberration of the off-axis view field can becorrected effectively.

A distance in parallel with an optical axis from a maximum effectivediameter position to an axial point on the object-side surface of thesixth lens element is InRS61. A distance in parallel with an opticalaxis from a maximum effective diameter position to an axial point on theimage-side surface of the sixth lens element is InRS62. A centralthickness of the sixth lens element on the optical axis is TP6. Thefollowing relation is satisfied: 0<|InRS62|/TP6<3. Hereby, it'sfavorable for manufacturing and forming the lens element and formaintaining the minimization for the optical image capturing system.

A distance perpendicular to the optical axis between a critical point onthe object-side surface of the sixth lens element and the optical axisis HVT61. A distance perpendicular to the optical axis between acritical point on the image-side surface of the sixth lens element andthe optical axis is HVT62. The following relation is satisfied:0≦HVT61/HVT62. Hereby, the aberration of the off-axis view field can becorrected effectively.

The following relation is satisfied for the optical image capturingsystem of the disclosure: 0.2≦HVT62/HOI≦0.9. Preferably, the followingrelation may be satisfied: 0.3≦HVT62/HOI≦0.8. Hereby, the aberration ofsurrounding view field for the optical image capturing system can becorrected beneficially.

The following relation is satisfied for the optical image capturingsystem of the disclosure: 0≦HVT62/HOS≦0.5. Preferably, the followingrelation may be satisfied: 0.2≦HVT62/HOS≦0.45. Hereby, the aberration ofsurrounding view field for the optical image capturing system can becorrected beneficially.

A distance in parallel with an optical axis from an inflection point toan axial point on the object-side surface of the sixth lens element isdenoted by Inf61. A distance in parallel with an optical axis from aninflection point to an axial point on the image-side surface of thesixth lens element is denoted by Inf62. The following relation issatisfied: 0<Inf62/(Inf62+CT6)≦5. Preferably, the following relation maybe satisfied: 0.1≦Inf62/(Inf62+CT6)≦1.

The following relation is satisfied for the optical image capturingsystem of the disclosure: 1 mm≦|InRS52|+|InRS61|<5 mm. Preferably, thefollowing relation may be satisfied: 1.5 mm≦|InRS52|+|InRS61|<3.5 mm.Hereby, a distance of a maximum effective diameter position between thefifth lens element and the sixth lens element can be controlled. Thus,it's favorable for correcting the aberration of surrounding view fieldfor the optical image capturing system and for maintaining theminimization for the optical image capturing system.

The following relation is satisfied for the optical image capturingsystem of the disclosure: 0≦Inf62/|InRS62|≦120. A depth of the maximumeffective diameter and positions of appearing inflection points on theimage-side surface of the sixth lens element can be controlled. Thus,it's favorable for correcting the aberration of off-axis view field andmaintaining the minimization for the optical image capturing systemeffectively.

In one embodiment of the optical image capturing system of the presentdisclosure, the chromatic aberration of the optical image capturingsystem can be corrected by staggering the lens element with highdispersion coefficient and the lens element with low dispersioncoefficient.

The above Aspheric formula is:z=ch²/[1+[1−(k+1)c²h²]^(0.5)]+A4h⁴+A6h⁶+A8h⁸+A10h¹⁰+A12h¹²+A14h¹⁴+A16h¹⁶+A18h¹⁸+A20h²⁰+. . . (1), where z is a position value of the position along the opticalaxis and at the height h which reference to the surface apex; k is theconic coefficient, c is the reciprocal of curvature radius, and A4, A6,A8, A10, A12, A14, A16, A18, and A20 are high level asphericcoefficients.

The optical image capturing system provided by the disclosure, the lenselements may be made of glass or plastic material. If plastic materialis adopted to produce the lens elements, the cost of manufacturing willbe lowered and the weight of the lens element will be reducedeffectively. If lens elements are made of glass, the heat effect can becontrolled and the designed space arranged for the refractive power ofthe optical image capturing system can be increased. Besides, theobject-side surface and the image-side surface of the first throughsixth lens elements may be aspheric, so as to obtain more controlvariables. Comparing with the usage of traditional lens element made byglass, the number of using lens elements can be reduced and theaberration can be eliminated. Therefore, the total height of the opticalimage capturing system can be reduced effectively.

In addition, in the optical image capturing system provided of thedisclosure, the lens element has a convex surface if the surface of thelens element is convex adjacent to the optical axis. The lens elementhas a concave surface if the surface of the lens element is concavingadjacent to the optical axis.

In addition, in the optical image capturing system of the disclosure,according to different requirements, at least one aperture stop may bearranged for reducing stray light and improving the image quality.

In the optical image capturing system of the disclosure, the aperturestop may be a front or middle aperture. The front aperture is theaperture stop between a photographed object and the first lens element.The middle aperture is the aperture stop between the first lens elementand the image plane. If the aperture stop is the front aperture, alonger distance between the exit pupil and the image plane of theoptical image capturing system may be formed, such that more opticalelements can be disposed in the optical image capturing system and theeffect of receiving images of the image sensing device can be raised. Ifthe aperture stop is the middle aperture, the view angle of the opticalimage capturing system can be expended, such that the optical imagecapturing system has the same advantage that is owned by wide anglecameras.

The optical image capturing system of the disclosure can be adapted tothe optical image capturing system with automatic focus if required.With the features of a good aberration correction and a high quality ofimage formation, the optical image capturing system can be used invarious application fields.

According to the above embodiments, the specific embodiments withfigures are presented in detailed as below.

The First Embodiment Embodiment 1

Please refer to FIG. 1A, FIG. 1B, and FIG. 1C, FIG. 1A is a schematicview of the optical image capturing system according to the firstembodiment of the present application, FIG. 1B is longitudinal sphericalaberration curves, astigmatic field curves, and an optical distortioncurve of the optical image capturing system in the order from left toright according to the first embodiment of the present application, andFIG. 1C is a TV distortion grid of the optical image capturing systemaccording to the first embodiment of the present application. As shownin FIG. 1A, in order from an object side to an image side, the opticalimage capturing system includes a first lens element 110, an aperturestop 100, a second lens element 120, a third lens element 130, a fourthlens element 140, a fifth lens element 150, a sixth lens element 160, anIR-bandstop filter 170, an image plane 180, and an image sensing device190.

The first lens element 110 has a positive refractive power and it ismade of plastic material. The first lens element 110 has a convexobject-side surface 112 and a concave image-side surface 114, and bothof the object-side surface 112 and the image-side surface 114 areaspheric.

The second lens element 120 has a negative refractive power and it ismade of plastic material. The second lens element 120 has a convexobject-side surface 122 and a concave image-side surface 124, and bothof the object-side surface 122 and the image-side surface 124 areaspheric.

The third lens element 130 has a positive refractive power and it ismade of plastic material. The third lens element 130 has a convexobject-side surface 132 and a convex image-side surface 134, and both ofthe object-side surface 132 and the image-side surface 134 are aspheric.

The fourth lens element 140 has a negative refractive power and it ismade of plastic material. The fourth lens element 140 has a concaveobject-side surface 142 and a convex image-side surface 144, and both ofthe object-side surface 142 and the image-side surface 144 are aspheric.

The fifth lens element 150 has a positive refractive power and it ismade of plastic material. The fifth lens element 150 has a convexobject-side surface 152 and a convex image-side surface 154, and both ofthe object-side surface 152 and the image-side surface 154 are aspheric.The object-side surface 152 has inflection points.

The sixth lens element 160 has a negative refractive power and it ismade of plastic material. The sixth lens element 160 has a concaveobject-side surface 162 and a concave image-side surface 164, and bothof the object-side surface 162 and the image-side surface 164 areaspheric. The image-side surface 164 has inflection points.

The IR-bandstop filter 180 is made of glass material without affectingthe focal length of the optical image capturing system and it isdisposed between the sixth lens element 160 and the image plane 170.

In the first embodiment of the optical image capturing system, a focallength of the optical image capturing system is f, an entrance pupildiameter of the optical image capturing system is HEP, and half of amaximal viewing angle of the optical image capturing system is HAF. Thedetailed parameters are shown as below: f=5.2905 mm, f/HEP=1.4, HAF=36degree and tan(HAF)=0.7265.

In the first embodiment of the optical image capturing system, a focallength of the first lens element 110 is f1 and a focal length of thesixth lens element 160 is f6. The following relation is satisfied:f1=7.984 mm, |f/f1|=0.6626, f6=−6.1818 mm, |f1|>f6 and |f1/f6|=1.2915.

In the first embodiment of the optical image capturing system, focallengths of the second lens element 120, the third lens element 130, thefourth lens element 140, and the fifth lens element 150 are f2, f3, f4,and f5, respectively. The following relation is satisfied:|f2|+|f3|+|f4|+|f5|=27.9|95 mm, |f1|+|f6|=|4.1658 mm and|f2|+|f3|+|f4|+|f5|+|f6|>|f1|+|f61.

A ratio of the focal length f of the optical image capturing system to afocal length fp of each of lens elements with the positive refractivepower is PPR. A ratio of the focal length f of the optical imagecapturing system to a focal length fn of each of lens elements with anegative refractive power is NPR. In the first embodiment of the opticalimage capturing system, a sum of the PPR of all lens elements with thepositive refractive power is ΣPPR=f/f1+f/f3+f/f5=2.7814. A sum of theNPR of all lens elements with the negative refractive power is ΣNPR=f/f2+f/f4+f/f6=−2.0611, and Σ PPR/|Σ NPR|=1.3494.

In the first embodiment of the optical image capturing system, adistance from the object-side surface 112 of the first lens element tothe image-side surface 164 of the sixth lens element is InTL. A distancefrom the object-side surface 112 of the first lens element to the imageplane 180 is HOS. A distance from an aperture stop 100 to an image plane180 is InS. Half of a diagonal of an effective detection field of theimage sensing device 190 is HOI. A distance from the image-side surface164 of the sixth lens element to the image plane 180 is InB. Thefollowing relation is satisfied: InTL+InB=HOS, HOS=8.9645 mm, HOI=3.913mm, HOS/HOI=2.2910, HOS/f=1.6945, InS=8.3101 mm and InS/HOS=0.927.

In the first embodiment of the optical image capturing system, a totalcentral thickness of all lens elements with a refractive power on theoptical axis is ΣTP. The following relation is satisfied: ΣTP=5.2801 mmand ΣTP/InTL=0.6445. Hereby, contrast ratio for the image formation inthe optical image capturing system and defect-free rate formanufacturing the lens element can be given considerationsimultaneously, and a proper back focal length is provided to disposeothers optical components in the optical image capturing system.

In the first embodiment of the optical image capturing system, acurvature radius of the object-side surface 112 of the first lenselement is R1 and a curvature radius of the image-side surface 114 ofthe first lens element is R2. The following relation is satisfied:|R1/R2|=0.598. Hereby, the first lens element may have proper strengthof the positive refractive power, to avoid the longitudinal sphericalaberration to increase too fast.

In the first embodiment of the optical image capturing system, acurvature radius of the object-side surface 162 of the sixth lenselement is R11 and a curvature radius of the image-side 164 surface ofthe sixth lens element is R12. The following relation is satisfied:(R11−R12)/(R11+R12)=−0.7976. Hereby, the astigmatic generated by theoptical image capturing system can be corrected beneficially.

In the first embodiment of the optical image capturing system, focallengths of the first lens element 110, the third lens element 130, andthe fifth lens element 150 are f1, f3, and f5, respectively. A sum offocal lengths of all lens elements with positive refractive powers isΣPP. The following relation is satisfied: ΣPP=f1+f3+f5=18.3455 mm andf1/(f1+f3+f5)=0.4352. Hereby, it's favorable for allocating the positiverefractive power of the first lens element 110 to others convex lenselements, and the significant aberrations generated in the process ofmoving the incident light can be suppressed.

In the first embodiment of the optical image capturing system, focallengths of the second lens element 120, the fourth lens element 140, andthe sixth lens element 160 are f2, f4, and f6, respectively. A sum offocal lengths of all lens elements with negative refractive powers isΣNP. The following relation is satisfied: ΣNP=f2+f4+f6=−23.7398 mm andf6/(f2+f4+f6)=0.3724. Hereby, it's favorable for allocating the negativerefractive power of the sixth lens element to others concave lenselements, and the significant aberrations generated in the process ofmoving the incident light can be suppressed.

In the first embodiment of the optical image capturing system, adistance between the first lens element 110 and the second lens element120 on the optical axis is IN12. The following relation is satisfied:IN12=0.8266 mm and IN12/f=0.1562. Hereby, the aberration of the lenselements is improved and the performance is increased.

In the first embodiment of the optical image capturing system, centralthicknesses of the first lens element 110 and the second lens element120 on the optical axis are TP1 and TP2, respectively. The followingrelation is satisfied: TP1=0.6065 mm, TP2=0.4574 mm and(TP1+IN12)/TP2=3.1331. Hereby, the sensitivity produced by the opticalimage capturing system can be controlled and the performance can beincreased.

In the first embodiment of the optical image capturing system, centralthicknesses of the fifth lens element 150 and the sixth lens element 160on the optical axis are TP5 and TP6, respectively, and a distancebetween the fifth lens element and the sixth lens element on the opticalaxis is IN56. The following relation is satisfied: TP5=1.0952 mm,TP6=0.4789 mm and (TP6+IN56)/TP5=1.3378. Hereby, the sensitivityproduced by the optical image capturing system can be controlled and thetotal height of the optical image capturing system can be reduced.

In the first embodiment of the optical image capturing system, centralthicknesses of the third lens element 130, the fourth lens element 140,and the fifth lens element 150 on the optical axis are TP3, TP4, andTP5, respectively. A distance between the third lens element 130 and thefourth lens element 140 on the optical axis is IN34. A distance betweenthe fourth lens element 140 and the fifth lens element 150 on theoptical axis is IN45. The following relation is satisfied: TP3=2.0138mm, TP4=0.6283 mm, TP5=1.0952 mm and (TP3+TP4+TP5)/ΣTP=0.5843. Hereby,the aberration generated by the process of moving the incident light canbe adjusted slightly layer upon layer, and the total height of theoptical image capturing system can be reduced.

In the first embodiment of the optical image capturing system, adistance in parallel with an optical axis from a maximum effectivediameter position to an axial point on the object-side surface 152 ofthe fifth lens element is InRS51. A distance in parallel with an opticalaxis from a maximum effective diameter position to an axial point on theimage-side surface 154 of the fifth lens element is InRS52. A centralthickness of the fifth lens element 150 is TP5. The following relationis satisfied: InRS51=0.3945 mm, InRS52=−0.5015 mm and|InRS52|/TP5=0.4579. Hereby, it's favorable for manufacturing andforming the lens element and for maintaining the minimization for theoptical image capturing system.

In the first embodiment of the optical image capturing system, adistance perpendicular to the optical axis between a critical point onthe object-side surface 152 of the fifth lens element and the opticalaxis is HVT51. A distance perpendicular to the optical axis between acritical point on the image-side surface 154 of the fifth lens elementand the optical axis is HVT52. The following relation is satisfied:HVT51=2.3446 mm and HVT52=1.2401 mm.

In the first embodiment of the optical image capturing system, adistance in parallel with an optical axis from an inflection point to anaxial point on the object-side surface 152 of the fifth lens element isInf51. A distance in parallel with an optical axis from an inflectionpoint to an axial point on the image-side surface 154 of the fifth lenselement is Inf52. The following relation is satisfied: Inf51=0.4427 mm,Inf52=0.0638 mm, HVT52/(Inf52+CT5)=1.070, andtan⁻¹(HVT52/(Inf52+CT5))=46.9368 degree.

In the first embodiment of the optical image capturing system, adistance in parallel with an optical axis from a maximum effectivediameter position to an axial point on the object-side surface 162 ofthe sixth lens element is InRS61. A distance in parallel with an opticalaxis from a maximum effective diameter position to an axial point on theimage-side surface 164 of the sixth lens element is InRS62. A centralthickness of the sixth lens element 160 is TP6. The following relationis satisfied: InRS61=−1.4393 mm, InRS62=−0.1489 mm and|InRS62|/TP6=0.3109. Hereby, it's favorable for manufacturing andforming the lens element and for maintaining the minimization for theoptical image capturing system.

In the first embodiment of the optical image capturing system, adistance perpendicular to the optical axis between a critical point onthe object-side surface 162 of the sixth lens element and the opticalaxis is HVT61. A distance perpendicular to the optical axis between acritical point on the image-side surface 164 of the sixth lens elementand the optical axis is HVT62. The following relation is satisfied:HVT61=0 mm, HVT62=3.1461 mm and HVT61/HVT62=0. Hereby, the aberration ofthe off-axis view field can be corrected effectively.

The following relation is satisfied for the optical image capturingsystem of the disclosure: HVT62/HOI=0.8040. Hereby, the aberration ofsurrounding view field for the optical image capturing system can becorrected beneficially.

The following relation is satisfied for the optical image capturingsystem of the disclosure: HVT62/HOS=0.3510. Hereby, the aberration ofsurrounding view field for the optical image capturing system can becorrected beneficially.

In the first embodiment of the optical image capturing system, adistance in parallel with an optical axis from an inflection point to anaxial point on the object-side surface 162 of the sixth lens element isInf61. A distance in parallel with an optical axis from an inflectionpoint to an axial point on the image-side surface 164 of the sixth lenselement is Inf62. The following relation is satisfied: Inf61=0 mm,Inf62=0.1954 mm, HVT62/(Inf62+CT6)=4.6657 andtan⁻¹(HVT62/(Inf62+CT6))=77.9028 degree.

In the first embodiment of the optical image capturing system, Thefollowing relation is satisfied: |InRS52|+|InRS61|=1.9408 mm. Hereby, adistance of a maximum effective diameter position between the fifth lenselement 150 and the sixth lens element 160 can be controlled. Thus, it'sfavorable for correcting the aberration of surrounding view field forthe optical image capturing system and for maintaining the minimizationfor the optical image capturing system.

The following relation is satisfied for the optical image capturingsystem of the disclosure: Inf62/|InRS62|=1.3123. A depth of the maximumeffective diameter and positions of appearing inflection points on theimage-side surface 164 of the sixth lens element can be controlled.Thus, it's favorable for correcting the aberration of off-axis viewfield and maintaining the minimization for the optical image capturingsystem effectively.

In the first embodiment of the optical image capturing system, thesecond lens element 120, the fourth lens element 140, and the sixth lenselement 160 have negative refractive powers. An Abbe number of thesecond lens element is NA2. An Abbe number of the fourth lens element isNA4. An Abbe number of the sixth lens element is NA6. The followingrelation is satisfied: 1≦NA6/NA2. Hereby, the aberration for the opticalimage capturing system can be corrected beneficially.

In the first embodiment of the optical image capturing system, TVdistortion for image formation in the optical image capturing system isTDT and optical distortion for image formation in the optical imagecapturing is ODT. The following relation is satisfied: |TDT|=0.96% and|ODT|=1.9485%.

Please refer to the following Table 1 and Table 2.

The detailed data of the optical image capturing system of the firstembodiment is as shown in Table 1.

TABLE 1 Data of the optical image capturing system f = 5.2905 mm, f/HEP= 1.4, HAF = 32 deg, tan(HAF) = 0.7265 Focal Surface # Curvature RadiusThickness Material Index Abbe # length 0 Object Plano INFINITY 1 Lens 14.2552 0.6065 Plastic 1.565 54.5 7.984 2 71.1925 0.0480 3 Ape. stopPlano 0.7787 4 Lens 2 6.0791 0.4574 Plastic 1.65 21.4 −8.8412 5 2.86660.5561 6 Lens 3 10.2020 2.0138 Plastic 1.565 58 4.1972 7 −2.8694 0.49408 Lens 4 −1.0612 0.6283 Plastic 1.565 54.5 −8.7168 9 −1.6418 0.0500 10Lens 5 2.3012 1.0952 Plastic 1.565 58 6.1643 11 5.6173 0.9863 12 Lens 6−3.1756 0.4789 Plastic 1.583 30.2 −6.1818 13 −28.2003 0.3000 16IR-bandstop Plano 0.2000 1.517 64.2 filter 17 Plano 0.2563 18 Imageplane Plano 0.0151 Reference wavelength (d-line) = 587.5 nm

As for the parameters of the aspheric surfaces of the first embodiment,reference is made to Table 2.

TABLE 2 Aspheric Coefficients Surface # 1 2 4 5 6 7 k = −1.92977E−03  6.76819E−04 −1.48087E−02 −9.42908E−03 −2.91344E−03 −1.25824E−02 A4 =  1.05934E−04   1.07039E−03 −2.20151E−03   1.28503E−03 −7.60139E−04  2.23748E−03 A6 = −6.25283E−05 −2.35638E−04   9.92240E−04 −2.58821E−04  1.40480E−04   1.22574E−04 A8 = −1.16210E−06   3.59820E−05 −2.06067E−04  4.99180E−06 −5.56820E−05 −3.42043E−05 A10 = A12 = A14 = Surface # 8 910 11 12 13 k = −2.56929E−03 −6.96965E−03 −6.41195E−03 −2.01907E−02−1.86873E−03   9.91901E−03 A4 =   4.97268E−04 −1.21600E−04 −5.36474E−04−4.74909E−04   1.28019E−03   1.32067E−03 A6 =   2.49337E−04  1.61724E−05 −4.02556E−05   3.45850E−04 −3.39587E−05 −6.75471E−04 A8 =−3.33577E−05 −3.93832E−06   1.54534E−05 −3.21501E−05   6.55577E−06  8.73598E−05 A10 = −2.21906E−07   2.37380E−06 −9.16956E−07 −4.93107E−06A12 = −3.86881E−08 −1.04159E−07   2.98564E−08   1.02536E−07 A14 =

Table 1 is the detailed structure data to the first embodiment in FIG.1A, the unit of the curvature radius, the thickness, the distance, andthe focal length is millimeters (mm). Surfaces 0-16 illustrate thesurfaces from the object side to the image plane in the optical imagecapturing system. Table 2 is the aspheric coefficients of the firstembodiment, k is the conic coefficient in the aspheric surface formula,and A1 through A14 are the first through fourteen order aspheric surfacecoefficients, respectively. Besides, the tables in following embodimentsare referenced to the schematic view and the aberration graphs,respectively, and definitions of parameters in the tables are equal tothose in the Table 1 and the Table 2, so the repetitious details neednot be given here.

The Second Embodiment Embodiment 2

Please refer to FIG. 2A, FIG. 2B, and FIG. 2C, FIG. 2A is a schematicview of the optical image capturing system according to the secondembodiment of the present application, FIG. 2B is longitudinal sphericalaberration curves, astigmatic field curves, and an optical distortioncurve of the optical image capturing system in the order from left toright according to the second embodiment of the present application, andFIG. 2C is a TV distortion grid of the optical image capturing systemaccording to the second embodiment of the present application. As shownin FIG. 2A, in order from an object side to an image side, the opticalimage capturing system includes an aperture stop 200, a first lenselement 210, a second lens element 220, a third lens element 230, afourth lens element 240, a fifth lens element 250, a sixth lens element260, an IR-bandstop filter 270, an image plane 280, and an image sensingdevice 290.

The first lens element 210 has a positive refractive power and it ismade of plastic material. The first lens element 210 has a convexobject-side surface 212 and a convex image-side surface 214, and both ofthe object-side surface 212 and the image-side surface 214 are aspheric.

The second lens element 220 has a negative refractive power and it ismade of plastic material. The second lens element 220 has a convexobject-side surface 222 and a concave image-side surface 224, and bothof the object-side surface 222 and the image-side surface 224 areaspheric.

The third lens element 230 has a negative refractive power and it ismade of plastic material. The third lens element 230 has a concaveobject-side surface 232 and a convex image-side surface 234, and both ofthe object-side surface 232 and the image-side surface 234 are aspheric.

The fourth lens element 240 has a positive refractive power and it ismade of plastic material. The fourth lens element 240 has a convexobject-side surface 242 and a convex image-side surface 244, and both ofthe object-side surface 242 and the image-side surface 244 are aspheric.

The fifth lens element 250 has a positive refractive power and it ismade of plastic material. The fifth lens element 250 has a concaveobject-side surface 252 and a convex image-side surface 254, and both ofthe object-side surface 252 and the image-side surface 254 are aspheric.The object-side surface 252 has inflection points.

The sixth lens element 260 has a negative refractive power and it ismade of plastic material. The sixth lens element 260 has a convexobject-side surface 262 and a concave image-side surface 264, and bothof the object-side surface 262 and the image-side surface 264 areaspheric. The object-side surface 262 and the image-side surface 264have inflection points.

The IR-bandstop filter 270 is made of glass material without affectingthe focal length of the optical image capturing system and it isdisposed between the sixth lens element 260 and the image plane 280.

In the second embodiment of the optical image capturing system, focallengths of the second lens element 220, the third lens element 230, thefourth lens element 240, and the fifth lens element 250 are f2, f3, f4,and f5, respectively. The following relation is satisfied:|f2|+|f3|+|f4|+|f5|=32.4760 mm, |f1|+|f6|=7.5847 mm and|f2|+|f3|+|f4|+|f5|>|f1|+|f6|.

In the second embodiment of the optical image capturing system, acentral thickness of the fifth lens element 250 is TP5. A centralthickness of the sixth lens element 260 is TP6. The following relationis satisfied: TP5=2.5241 mm and TP6=0.8251 mm.

In the second embodiment of the optical image capturing system, thefirst lens element 210, the fourth lens element 240 and the fifth lenselement 250 are convex lens elements, and focal lengths of the firstlens element 210, the fourth lens element 240 and the fifth lens element250 are f1, f4 and f5, respectively. A sum of focal lengths of all lenselements with positive refractive powers is ΣPP. The following relationis satisfied: ΣPP=f1+f4+f5=15.9728 mm and f1/(f1+f4+f5)=0.3040. Hereby,it's favorable for allocating the positive refractive power of the firstlens element 210 to others convex lens elements, and the significantaberrations generated in the process of moving the incident light can besuppressed.

In the second embodiment of the optical image capturing system, focallengths of the second lens element 220, the third lens element 230 andthe sixth lens element 260 are f2, f3 and f6, respectively. A sum offocal lengths of all lens elements with negative refractive powers isΣNP. The following relation is satisfied: ΣNP=f2+f3+f6=−24.0879 mm andf6/(f2+f3+f6)=0.1133. Hereby, it's favorable for allocating the negativerefractive power of the sixth lens element 260 to others concave lenselements.

In the second embodiment of the optical image capturing system, adistance perpendicular to the optical axis between a critical point onthe object-side surface 252 of the fifth lens element and the opticalaxis is HVT51. A distance perpendicular to the optical axis between acritical point on the image-side surface 254 of the fifth lens elementand the optical axis is HVT52. The following relation is satisfied:HVT51=2.0678 mm and HVT52=0 mm. A distance in parallel with an opticalaxis from an inflection point to an axial point on the object-sidesurface 252 of the fifth lens element is Inf51. A distance in parallelwith an optical axis from an inflection point to an axial point on theimage-side surface 254 of the fifth lens element is Inf52. The followingrelation is satisfied: Inf51=−0.2723 mm and Inf52=0 mm.

Please refer to the following Table 3 and Table 4.

The detailed data of the optical image capturing system of the secondembodiment is as shown in Table 3.

TABLE 3 Data of the optical image capturing system f = 4.5713 mm; f/HEP= 1.6; HAF = 40 deg; tan(HAF) = 0.8390 Focal Surface # Curvature RadiusThickness Material Index Abbe # length 0 Object Plano (INFINITY) 1 Ape.stop Plano −0.02803 2 Lens 1 3.34951 0.585938 Plastic 1.565 54.5 4.855 3−14.1945 0.111812 4 Lens 2 3.51374 0.23 Plastic 1.632 23.4 −10.987 52.27398 0.792151 6 Lens 3 −2.93775 0.23 Plastic 1.632 23.4 −10.3712 7−5.48529 0.05 8 Lens 4 8.95133 0.597982 Plastic 1.565 58 8.55 9 −10.2410.122133 10 Lens 5 −7.55505 2.524137 Plastic 1.565 58 2.5678 11 −1.36390.05 12 Lens 6 3.71279 0.825093 Plastic 1.583 30.2 −2.7297 13 1.02277 114 IR-bandstop Plano 0.2 1.517 64.2 filter 15 Plano 0.369788 16 Imageplane Plano 0.006069 Reference wavelength (d-line) = 587.5 nm

As for the parameters of the aspheric surfaces of the second embodiment,reference is made to Table 4.

TABLE 4 Aspheric Coefficients Surface # 2 3 4 5 6 7 k =   1.08186902  50 −22.37089363 −9.38738013 −6.242281257   4.540182583 A4 =  4.03935E−03    3.15999E−02  −1.40185E−03 −1.16074E−02 −3.09055E−03  3.46193E−02 A6 =   6.76937E−04  −1.04561E−02  −5.79762E−03−4.92875E−03 −6.39943E−03 −4.88757E−04 A8 = −7.54033E−04    2.52680E−03   4.74230E−04 −1.07030E−03 −3.61838E−03 −1.15972E−04 A10 =  3.71875E−04    6.63890E−05    5.74018E−04   3.61864E−04   8.29439E−05−7.67556E−05 A12 = A14 = Surface # 8 9 10 11 12 13 k = −50   21.45469713  7.838326605 −3.404911386 −32.43001728   4.074412445 A4 =  −2.42835E−02 −3.21497E−02 −8.40916E−03 −1.61701E−02  −5.50550E−03 −8.14091E−03 A6 =   5.01220E−03    1.28885E−03 −5.70000E−04   8.68185E−04  −3.21860E−03  1.10733E−04 A8 =  −4.24391E−04    6.04565E−04   9.75620E−04  2.76020E−05    4.27467E−04   3.59753E−05 A10 =    9.95514E−06   1.60257E−04   2.05047E−04 −3.55820E−05  −4.48304E−06 −5.22401E−06 A12= −8.26664E−05   4.06319E−06  −1.11387E−06   2.13403E−07 A14 =  6.50230E−06 −3.12287E−08    9.75535E−10 −3.32753E−09

In the second embodiment, the presentation of the aspheric surfaceformula is similar to that in the first embodiment. Besides, thedefinitions of parameters in following tables are equal to those in thefirst embodiment, so the repetitious details need not be given here.

The following content may be deduced from Table 3 and Table 4.

Second embodiment |f/f1| 0.9416 InRS51 −0.2427 f1/ΣPP 0.3040 InRS52−1.9337 f6/ΣNP 0.1133 InRS61 −0.531 IN12/f 0.0245 InRS62 0.0972 HOS/f1.6834 Inf61 0.1204 ΣPPR 3.2565 HVT61 1.4938 |ΣNPR| 2.5315 Inf62 0.8766ΣPPR/|ΣNPR| 1.2864 HVT62 2.7625 (R11 − R12)/(R11 + R12) 0.5680|InRS52|/TP5 0.7661 HOS 7.6951 |InRS52| + |InRS61| 2.4647 HOS/HOI 2.0061|InRS62|/TP6 0.1178 InS/HOS 0.9964 Inf62/|InRS62| 9.0185 InTL/HOS 0.7952HVT62/HOI 0.7202 ΣTP/InTL 0.8160 HVT62/HOS 0.3590 (TP1 + IN12)/TP23.0335 HVT62/(Inf62 + CT6) 1.6234 (TP6 + IN56)/TP5 0.3467 |TDT| 1.2(TP2 + TP3 + TP4)/ΣTP 0.6713 |ODT| 2.0828

The Third Embodiment Embodiment 3

Please refer to FIG. 3A, FIG. 3B, and FIG. 3C, FIG. 3A is a schematicview of the optical image capturing system according to the thirdembodiment of the present application, FIG. 3B is longitudinal sphericalaberration curves, astigmatic field curves, and an optical distortioncurve of the optical image capturing system in the order from left toright according to the third embodiment of the present application, andFIG. 3C is a TV distortion grid of the optical image capturing systemaccording to the third embodiment of the present application. As shownin FIG. 3A, in order from an object side to an image side, the opticalimage capturing system includes an aperture stop 300, a first lenselement 310, a second lens element 320, a third lens element 330, afourth lens element 340, a fifth lens element 350, a sixth lens element360, an IR-bandstop filter 370, an image plane 380, and an image sensingdevice 390.

The first lens element 310 has a positive refractive power and it ismade of plastic material. The first lens element 310 has a convexobject-side surface 312 and a concave image-side surface 314, and bothof the object-side surface 312 and the image-side surface 314 areaspheric.

The second lens element 320 has a negative refractive power and it ismade of plastic material. The second lens element 320 has a concaveobject-side surface 322 and a concave image-side surface 324, and bothof the object-side surface 322 and the image-side surface 324 areaspheric.

The third lens element 330 has a negative refractive power and it ismade of plastic material. The third lens element 330 has a convexobject-side surface 332 and a concave image-side surface 334, and bothof the object-side surface 332 and the image-side surface 334 areaspheric.

The fourth lens element 340 has a positive refractive power and it ismade of plastic material. The fourth lens element 340 has a concaveobject-side surface 342 and a convex image-side surface 344, and both ofthe object-side surface 342 and the image-side surface 344 are aspheric.

The fifth lens element 350 has a positive refractive power and it ismade of plastic material. The fifth lens element 350 has a concaveobject-side surface 352 and a convex image-side surface 354, and both ofthe object-side surface 352 and the image-side surface 354 are aspheric.

The sixth lens element 360 has a negative refractive power and it ismade of plastic material. The sixth lens element 360 has a concaveobject-side surface 362 and a concave image-side surface 364, and bothof the object-side surface 362 and the image-side surface 364 areaspheric. The image-side surface 364 has inflection points.

The IR-bandstop filter 370 is made of glass material without affectingthe focal length of the optical image capturing system and it isdisposed between the sixth lens element 360 and the image plane 380.

In the third embodiment of the optical image capturing system, focallengths of the second lens element 320, the third lens element 330, thefourth lens element 340, and the fifth lens element 350 are f2, f3, f4,and f5, respectively. The following relation is satisfied:|f2|+|f3|+|f4|+|f5|=39.3906 mm, |f1|+|f6|=7.5390 mm and|f2|+|f3|+|f4|+|f5|>|f1|+|f61.

In the third embodiment of the optical image capturing system, a centralthickness of the fifth lens element 350 is TP5. A central thickness ofthe sixth lens element 360 is TP6. The following relation is satisfied:TP5=1.2122 mm and TP6=0.3832 mm.

In the third embodiment of the optical image capturing system, the firstlens element 310, the fourth lens element 340 and the fifth lens element350 are convex lens elements, and focal lengths of the first lenselement 310, the fourth lens element 340 and the fifth lens element 350are f1, f4 and f5, respectively. A sum of focal lengths of all lenselements with positive refractive powers is ΣPP. The following relationis satisfied: ΣPP=f1+f4+f5=15.0952 mm and f1/(f1+f4+f5)=0.3348. Hereby,it's favorable for allocating the positive refractive power of the firstlens element 310 to others convex lens elements, and the significantaberrations generated in the process of moving the incident light can besuppressed.

In the third embodiment of the optical image capturing system, focallengths of the second lens element 320, the third lens element 330 andthe sixth lens element 360 are f2, f3 and f6, respectively. A sum offocal lengths of all lens elements with negative refractive powers isΣNP. The following relation is satisfied: ΣNP=f2+f3+f6=−31.8344 mm andf6/(f2+f3+f6)=0.0781. Hereby, it's favorable for allocating the negativerefractive power of the sixth lens element 360 to others concave lenselements.

In the third embodiment of the optical image capturing system, adistance perpendicular to the optical axis between a critical point onthe object-side surface 352 of the fifth lens element and the opticalaxis is HVT51. A distance perpendicular to the optical axis between acritical point on the image-side surface 354 of the fifth lens elementand the optical axis is HVT52. The following relation is satisfied:HVT51=0 mm and HVT52=0 mm. A distance in parallel with an optical axisfrom an inflection point to an axial point on the object-side surface352 of the fifth lens element is Inf51. A distance in parallel with anoptical axis from an inflection point to an axial point on theimage-side surface 354 of the fifth lens element is Inf52. The followingrelation is satisfied: Inf51=0 mm and Inf52=0 mm.

Please refer to the following Table 5 and Table 6.

The detailed data of the optical image capturing system of the thirdembodiment is as shown in Table 5.

TABLE 5 Data of the optical image capturing system f = 4.5726 mm ; f/HEP= 1.8; HAF = 40 deg; tan(HAF) = 0.8390 Focal Surface# Curvature RadiusThickness Material Index Abbe # length 0 Object Plano (INFINITY) 1 Ape.stop Plano −0.32788 2 Lens 1 2.83739 0.393218 Plastic 1.565 58 4.5726 3421.3488 0.0975 4 Lens 2 −55.7955 0.395208 Plastic 1.514 56.8 5.0542 511.89765 0.321207 6 Lens 3 5.12467 0.258138 Plastic 1.65 21.4 −19.0411 72.84619 0.200214 8 Lens 4 −299.559 0.597338 Plastic 1.565 58 −10.3085 9−3.79199 0.727219 10 Lens 5 −5.56216 1.212152 Plastic 1.565 54.5 6.792611 −1.48856 0.654564 12 Lens 6 −4.77016 0.383211 Plastic 1.535 55.73.2484 13 1.89463 0.7 14 IR-bandstop Plano 0.2 1.517 64.2 −2.4848 filter15 Plano 0.252155 16 Image Plano 0.007876 plane Reference wavelength(d-line) = 587.5 nm

As for the parameters of the aspheric surfaces of the third embodiment,reference is made to Table 6.

TABLE 6 Aspheric Coefficients Surface # 2 3 4 5 6 7 k = −5.96585249.995277   49.739394   27.638812 −50 −11.956527 A4 =   2.95728E−02 2.95154E−02    6.27052E−02    9.27185E−03  −8.92197E−02  −5.21614E−02A6 = −3.59187E−03  7.33087E−03  −3.06745E−03  −7.53844E−03   5.82003E−03    9.75060E−03 A8 =   2.74798E−03  2.41521E−03   2.64315E−03  −1.30414E−03  −4.87666E−03    9.43812E−04 A10 =  1.48554E−03  1.39862E−03    −3.09562E−04   1.54468E−04    6.39080E−04 −1.04699E−03 A12 = A14 = Surface # 8 9 10 11 12 13 k = −50 −1.370737  8.366454 −3.274638 −26.628075 −7.741381 A4 =  −8.54232E−03−1.90502E−02 −1.07990E−02 −2.28165E−02  −2.21065E−02 −1.31852E−02 A6 = −3.14781E−03 −3.74343E−03 −8.54871E−04   3.13144E−04  −2.80125E−03  7.44802E−04 A8 =    4.61255E−03   5.58778E−04 −1.03554E−03−4.35461E−04    4.01964E−04 −2.18913E−05 A10 =  −1.76537E−03  3.14703E−04   1.87018E−05 −2.88086E−05    7.89619E−05 −4.11510E−06 A12=   3.35355E−05   8.79355E−06    9.16827E−06  9.96609E−08 A14 =  1.92818E−06 −1.26328E−06  −1.12757E−06 −4.17893E−09

In the third embodiment, the presentation of the aspheric surfaceformula is similar to that in the first embodiment. Besides, thedefinitions of parameters in following tables are equal to those in thefirst embodiment, so the repetitious details need not be given here.

The following content may be deduced from Table 5 and Table 6.

Third embodiment |f/f1| 0.9047 InRS51 −0.7044 f1/ΣPP 0.3348 InRS52−1.5125 f6/ΣNP 0.0781 InRS61 −1.2743 IN12/f 0.0213 InRS62 −0.5088 HOS/f1.3996 Inf61 0 ΣPPR 2.9855 HVT61 0 |ΣNPR| 2.5239 Inf62 0.3681ΣPPR/|ΣNPR| 1.1829 HVT62 2.0935 (R11 − R12)/(R11 + R12) 2.3177|InRS52|/TP5 1.2477 HOS 6.4 |InRS52| + |InRS61| 2.7868 HOS/HOI 1.6356|InRS62|/TP6 1.3278 InS/HOS 0.9488 Inf62/|InRS621| 0.7235 InTL/HOS0.8188 HVT62/HOI 0.5350 ΣTP/InTL 0.6182 HVT62/HOS 0.3271 (TP1 +IN12)/TP2 1.2416 HVT62/(Inf62 + CT6) 2.7865 (TP6 + IN56)/TP5 0.8561|TDT| 1.18 (TP2 + TP3 + TP4)/ΣTP 0.6383 |ODT| 2.0571

The Fourth Embodiment Embodiment 4

Please refer to FIG. 4A, FIG. 4B, and FIG. 4C, FIG. 4A is a schematicview of the optical image capturing system according to the fourthembodiment of the present application, FIG. 4B is longitudinal sphericalaberration curves, astigmatic field curves, and an optical distortioncurve of the optical image capturing system in the order from left toright according to the fourth embodiment of the present application, andFIG. 4C is a TV distortion grid of the optical image capturing systemaccording to the fourth embodiment of the present application. As shownin FIG. 4A, in order from an object side to an image side, the opticalimage capturing system includes an aperture stop 400, a first lenselement 410, a second lens element 420, a third lens element 430, afourth lens element 440, a fifth lens element 450, a sixth lens element460, an IR-bandstop filter 470, an image plane 480, and an image sensingdevice 490.

The first lens element 410 has a positive refractive power and it ismade of plastic material. The first lens element 410 has a convexobject-side surface 412 and a concave image-side surface 414, and bothof the object-side surface 412 and the image-side surface 414 areaspheric.

The second lens element 420 has a negative refractive power and it ismade of plastic material. The second lens element 420 has a convexobject-side surface 422 and a concave image-side surface 424, and bothof the object-side surface 422 and the image-side surface 424 areaspheric.

The third lens element 430 has a negative refractive power and it ismade of plastic material. The third lens element 430 has a convexobject-side surface 432 and a concave image-side surface 434, and bothof the object-side surface 432 and the image-side surface 434 areaspheric.

The fourth lens element 440 has a positive refractive power and it ismade of plastic material. The fourth lens element 440 has a concaveobject-side surface 442 and a convex image-side surface 444, and both ofthe object-side surface 442 and the image-side surface 444 are aspheric.

The fifth lens element 450 has a positive refractive power and it ismade of plastic material. The fifth lens element 450 has a convexobject-side surface 452 and a convex image-side surface 454, and both ofthe object-side surface 452 and the image-side surface 454 are aspheric.The object-side surface 452 has inflection points.

The sixth lens element 460 has a negative refractive power and it ismade of plastic material. The sixth lens element 460 has a concaveobject-side surface 462 and a concave image-side surface 464, and bothof the object-side surface 462 and the image-side surface 464 areaspheric. The image-side surface 464 has inflection points.

The IR-bandstop filter 470 is made of glass material without affectingthe focal length of the optical image capturing system and it isdisposed between the sixth lens element 460 and the image plane 480.

In the fourth embodiment of the optical image capturing system, focallengths of the second lens element 420, the third lens element 430, thefourth lens element 440, and the fifth lens element 450 are f2, f3, f4,and f5, respectively. The following relation is satisfied:|f2|+|f3|+|f4|+|f5|=118.2274 mm, |f1|+|f6|=7.0731 mm and|f2|+|f3|+|f4|+|f5|>|f1|+|f6|.

In the fourth embodiment of the optical image capturing system, acentral thickness of the fifth lens element 450 is TP5. A centralthickness of the sixth lens element 460 is TP6. The following relationis satisfied: TP5=0.6883 mm and TP6=0.3416 mm.

In the fourth embodiment of the optical image capturing system, thefirst lens element 410, the fourth lens element 440 and the fifth lenselement 450 are convex lens elements, and focal lengths of the firstlens element 410, the fourth lens element 440 and the fifth lens element450 are f1, f4 and f5, respectively. A sum of focal lengths of all lenselements with positive refractive powers is ΣPP. The following relationis satisfied: ΣPP=f1+f4+f5=12.8292 mm and f1/(f1+f4+f5)=0.4694. Hereby,it's favorable for allocating the positive refractive power of the firstlens element 410 to others convex lens elements, and the significantaberrations generated in the process of moving the incident light can besuppressed.

In the fourth embodiment of the optical image capturing system, focallengths of the second lens element 420, the third lens element 430 andthe sixth lens element 460 are f2, f3 and f6, respectively. A sum offocal lengths of all lens elements with negative refractive powers isΣNP. The following relation is satisfied: ΣNP=f2+f3+f6=−112.4713 mm andf6/(f2+f3+f6)=0.0093. Hereby, it's favorable for allocating the negativerefractive power of the sixth lens element to others concave lenselements.

In the fourth embodiment of the optical image capturing system, adistance perpendicular to the optical axis between a critical point onthe object-side surface 452 of the fifth lens element and the opticalaxis is HVT51. A distance perpendicular to the optical axis between acritical point on the image-side surface 454 of the fifth lens elementand the optical axis is HVT52. The following relation is satisfied:HVT51=0.6748 mm and HVT52=0 mm. A distance in parallel with an opticalaxis from an inflection point to an axial point on the object-sidesurface 452 of the fifth lens element is Inf51. A distance in parallelwith an optical axis from an inflection point to an axial point on theimage-side surface 454 of the fifth lens element is Inf52. The followingrelation is satisfied: Inf51=0.0298 mm and Inf52=0 mm.

Please refer to the following Table 7 and Table 8.

The detailed data of the optical image capturing system of the fourthembodiment is as shown in Table 7.

TABLE 7 Data of the optical image capturing system f = 3.2152 mm; f/HEP= 2.4; HAF = 50 deg; tan(HAF) = 1.1918 Focal Surface # Curvature RadiusThickness Material Index Abbe # length 0 Object Plano Plano 1 Ape. stopPlano −0.1076 2 Lens 1 2.11738 0.266827 Plastic 1.565 58 6.0219 3 5.35120.632352 4 Lens 2 −70.376 0.23 Plastic 1.65 21.4 −11.4204 5 8.30937 0.056 Lens 3 7.33317 0.704856 Plastic 1.565 58 −99.9997 7 6.2655 0.179753 8Lens 4 −71.3253 0.832052 Plastic 1.565 58 5.5256 9 −3.00366 0.05 10 Lens5 3.39743 0.688338 Plastic 1.583 30.2 1.2817 11 −0.88643 0.05 12 Lens 6−3.71543 0.341582 Plastic 1.65 21.4 −1.0512 13 0.86762 0.7 14IR-bandstop Plano 0.2 1.517 64.2 filter 15 Plano 0.390114 16 Image Plano0.016637 plane Reference wavelength (d-line) = 587.5 nm

As for the parameters of the aspheric surfaces of the fourth embodiment,reference is made to Table 8.

TABLE 8 Aspheric Coefficients Surface # 2 3 4 5 6 7 k = −1.486403  20.037896 −47.836825 −29.024308 −50 −50 A4 =   2.04365E−02 −2.64263E−02  −6.23748E−02  −4.89634E−02  −7.36367E−02  −5.44326E−02 A6= −2.23140E−04  −4.14775E−02  −8.13771E−02  −1.98137E−02    1.49424E−02   1.26389E−04 A8 = −1.38724E−02    2.90103E−02    4.58996E−02   3.31295E−03    6.25230E−03  −9.65532E−03 A10 = −3.43174E−02 −9.51296E−02  −5.48557E−02    5.63444E−03  −2.22654E−03    1.31869E−03A12 = A14 = Surface # 8 9 10 11 12 13 k = −50   0.852 −50 −4.524978 −50−4.286435 A4 =    3.10550E−02 −6.78629E−03  −9.52025E−02 −4.66619E−02   5.85686E−03 −2.63594E−02 A6 =  −1.53251E−02   6.69398E−03 −5.50756E−05   3.84923E−03    2.44221E−03   3.69409E−03 A8 = −6.44360E−04   8.22081E−04    1.93277E−03   1.04105E−03  −2.20103E−03−1.35587E−04 A10 =    4.32109E−04 −2.79839E−04    3.34627E−04  4.71334E−06  −1.06522E−04 −5.32157E−05 A12 =    1.12574E−05−2.83487E−06    1.22764E−04   6.83844E−06 A14 =  −1.67195E−05−2.29381E−06  −1.18112E−05 −2.53079E−07

In the fourth embodiment the presentation of the aspheric surfaceformula is similar to that in the first embodiment. Besides thedefinitions of parameters in following tables are equal to those in thefirst embodiment so the repetitious details need not be given here.

The following content may be deduced from Table 7 and Table 8.

Fourth embodiment |f/f1| 0.5339 InRS51 −0.734 f1/ΣPP 0.4694 InRS52−1.1849 f6/ΣNP 0.0093 InRS61 −0.7423 IN12/f 0.1967 InRS62 −0.0684 HOS/f1.6585 Inf61 0 ΣPPR 3.6243 HVT61 0 |ΣNPR| 3.3723 Inf62 0.6362ΣPPR/|ΣNPR| 1.0747 HVT62 2.2397 (R11 − R12)/(R11 + R12) 1.6093|InRS52|/TP5 1.7215 HOS 5.3325 |InRS52| + |InRS61| 1.9272 HOS/HOI 1.3628|InRS62|/TP6 0.2002 InS/HOS 0.9798 Inf62/|InRS62| 9.3012 InTL/HOS 0.7550HVT62/HOI 0.5724 ΣTP/InTL 0.7610 HVT62/HOS 0.4200 (TP1 + IN12)/TP23.9096 HVT62/(Inf62 + CT6) 2.2906 (TP6 + IN56)/TP5 0.5689 |TDT| 1.04(TP2 + TP3 + TP4)/ΣTP 0.7263 |ODT| 1.7125

The Fifth Embodiment Embodiment 5

Please refer to FIG. 5A, FIG. 5B, and FIG. 5C, FIG. 5A is a schematicview of the optical image capturing system according to the fifthembodiment of the present application, FIG. 5B is longitudinal sphericalaberration curves, astigmatic field curves, and an optical distortioncurve of the optical image capturing system in the order from left toright according to the fifth embodiment of the present application, andFIG. 5C is a TV distortion grid of the optical image capturing systemaccording to the fifth embodiment of the present application. As shownin FIG. 5A, in order from an object side to an image side, the opticalimage capturing system includes an aperture stop 500, a first lenselement 510, a second lens element 520, a third lens element 530, afourth lens element 540, a fifth lens element 550, a sixth lens element560, an IR-bandstop filter 570, an image plane 580, and an image sensingdevice 590.

The first lens element 510 has a positive refractive power and it ismade of plastic material. The first lens element 510 has a convexobject-side surface 512 and a concave image-side surface 514, and bothof the object-side surface 512 and the image-side surface 514 areaspheric.

The second lens element 520 has a negative refractive power and it ismade of plastic material. The second lens element 550 has a concaveobject-side surface 522 and a convex image-side surface 524, and both ofthe object-side surface 552 and the image-side surface 554 are aspheric.

The third lens element 530 has a negative refractive power and it ismade of plastic material. The third lens element 530 has a convexobject-side surface 532 and a concave image-side surface 534, and bothof the object-side surface 532 and the image-side surface 534 areaspheric.

The fourth lens element 540 has a positive refractive power and it ismade of plastic material. The fourth lens element 540 has a convexobject-side surface 542 and a convex image-side surface 544, and both ofthe object-side surface 542 and the image-side surface 544 are aspheric.

The fifth lens element 550 has a positive refractive power and it ismade of plastic material. The fifth lens element 550 has a concaveobject-side surface 552 and a convex image-side surface 554, and both ofthe object-side surface 552 and the image-side surface 554 are aspheric.The image-side surface 554 has inflection points.

The sixth lens element 560 has a negative refractive power and it ismade of plastic material. The sixth lens element 560 has a convexobject-side surface 562 and a concave image-side surface 564, and bothof the object-side surface 562 and the image-side surface 564 areaspheric. The object-side surface 562 and the image-side surface 564have inflection points.

The IR-bandstop filter 570 is made of glass material without affectingthe focal length of the optical image capturing system and it isdisposed between the sixth lens element 560 and the image plane 580.

In the fifth embodiment of the optical image capturing system, focallengths of the second lens element 520, the third lens element 530, thefourth lens element 540, and the fifth lens element 550 are f2, f3, f4,and f5, respectively. The following relation is satisfied:|f2|+|f3|+|f4|+|f5|=81.5659 mm, |f1|+|f6|=9.454 mm and|f2|+|f3|+|f4|+|f5|>|f1|+|f6|.

In the fifth embodiment of the optical image capturing system, a centralthickness of the fifth lens element 550 is TP5. A central thickness ofthe sixth lens element 560 is TP6. The following relation is satisfied:TP5=1.1894 mm and TP6=0.7656 mm.

In the fifth embodiment of the optical image capturing system, the firstlens element 510, the fourth lens element 540 and the fifth lens element550 are convex lens elements, and focal lengths of the first lenselement 510, the fourth lens element 540 and the fifth lens element 550are f1, f4 and f5, respectively. A sum of focal lengths of all lenselements with positive refractive powers is ΣPP. The following relationis satisfied: ΣPP=f1+f4+f5=15.0280 mm and f1/(f1+f4+f5)=0.4076. Hereby,it's favorable for allocating the positive refractive power of the firstlens element 510 to others convex lens elements, and the significantaberrations generated in the process of moving the incident light can besuppressed.

In the fifth embodiment of the optical image capturing system, focallengths of the second lens element 520, the third lens element 530 andthe sixth lens element 560 are f2, f3 and f6, respectively. A sum offocal lengths of all lens elements with negative refractive powers isΣNP. The following relation is satisfied: ΣNP=f2+f3+f6=−75.9919 mm andf6/(f2+f3+f6)=0.0438. Hereby, it's favorable for allocating the negativerefractive power of the sixth lens element to others concave lenselements.

In the fifth embodiment of the optical image capturing system, adistance perpendicular to the optical axis between a critical point onthe object-side surface 552 of the fifth lens element and the opticalaxis is HVT51. A distance perpendicular to the optical axis between acritical point on the image-side surface 554 of the fifth lens elementand the optical axis is HVT52. The following relation is satisfied:HVT51=0 mm and HVT52=1.9158 mm. A distance in parallel with an opticalaxis from an inflection point to an axial point on the object-sidesurface 552 of the fifth lens element is Inf51. A distance in parallelwith an optical axis from an inflection point to an axial point on theimage-side surface 554 of the fifth lens element is Inf52. The followingrelation is satisfied: Inf51=0 mm and Inf52=−1.3083 mm.

Please refer to the following Table 9 and Table 10.

The detailed data of the optical image capturing system of the fifthembodiment is as shown in Table 9.

TABLE 9 Data of the optical image capturing system f = 3.8293 mm; f/HEP= 2.0; HAF = 45 deg; tan(HAF) = 1 Focal Surface # Curvature RadiusThickness Material Index Abbe # length 0 Object Plano (INFINITY) 1 Ape.stop Plano −0.19934 2 Lens 1 2.48458 0.347651 Plastic 1.565 58 6.126 38.36077 0.293601 4 Lens 2 −4.94937 0.23 Plastic 1.583 30.2 −64.3092 5−5.79969 0.211262 6 Lens 3 10.20297 0.23 Plastic 1.65 21.4 −8.3547 73.5127 0.0725 8 Lens 4 4.0967 0.458574 Plastic 1.565 58 5.9557 9−18.0776 0.498936 10 Lens 5 −2.4555 1.189357 Plastic 1.565 58 2.9463 11−1.16557 0.130122 12 Lens 6 2.80371 0.76562 Plastic 1.583 30.2 −3.328 131.03137 1 14 IR-bandstop Plano 0.2 1.517 64.2 filter 15 Plano 0.36424 16Image Plano 0.008138 plane Reference wavelength (d-line) = 587.5 nm

As for the parameters of the aspheric surfaces of the fifth embodiment,reference is made to Table 10.

TABLE 10 Aspheric Coefficients Surface # 2 3 4 5 6 7 k = −0.298197   50  12.871806   20.979634 −31.77981 −34.010909 A4 =   7.39343E−03 −1.76294E−02  −4.48912E−02  −8.00832E−02  −1.05376E−01  −3.56502E−02 A6=   5.06119E−03  −4.44747E−03  −4.34800E−04    8.65855E−03   6.03692E−03    9.64506E−03 A8 =   1.71347E−04    1.54839E−03   7.37143E−03  −1.70390E−03  −1.18431E−02  −4.24801E−03 A10 =−2.25134E−04  −6.26205E−03  −1.74412E−02  −7.72470E−03  −5.80567E−03   1.64787E−04 A12 = A14 = Surface # 8 9 10 11 12 13 k = −50   3.519367−4.814215 −2.187072 −22.179587 −4.527632 A4 =  −2.73951E−02 −2.27306E−02−2.47543E−02 −3.01374E−02  −2.02526E−02 −2.05844E−02 A6 =    7.53633E−04−1.40100E−03   2.86671E−03   3.69068E−04  −1.18643E−03   2.44948E−03 A8=    1.12112E−03 −2.25616E−03   1.41872E−04 −3.05762E−04  −1.98851E−04−2.49597E−04 A10 =  −8.61837E−04   7.18839E−04   2.74726E−04−4.51420E−05    4.69571E−05   4.82476E−06 A12 =   1.08529E−04  2.49954E−05    9.61642E−06   7.54817E−07 A14 = −3.58395E−05  1.51466E−05  −2.53001E−06 −4.81098E−08

In the fifth embodiment, the presentation of the aspheric surfaceformula is similar to that in the first embodiment. Besides, thedefinitions of parameters in following tables are equal to those in thefirst embodiment, so the repetitious details need not be given here.

The following content may be deduced from Table 9 and Table 10.

Fifth embodiment |f/f1| 0.6255 InRS51 −0.5153 f1/ΣPP 0.4076 InRS52−1.3083 f6/ΣNP 0.0438 InRS61 −0.4613 IN12/f 0.0766 InRS62 −0.0707 HOS/f1.5658 Inf61 0.1153 ΣPPR 3.2268 HVT61 1.276 |ΣNPR| 1.6697 Inf62 0.593ΣPPR/|ΣNPR| 1.9325 HVT62 2.1866 (R11 − R12)/(R11 + R12) 0.4621|InRS52|/TP5 1.1000 HOS 6 |InRS52| + |InRS61| 1.7696 HOS/HOI 1.5334|InRS62|/TP6 0.0923 InS/HOS 0.9668 Inf62/|InRS62| 8.3876 InTL/HOS 0.7379HVT62/HOI 0.5588 ΣTP/InTL 0.7275 HVT62/HOS 0.3644 (TP1 + IN12)/TP22.7883 HVT62/(Inf62 + CT6) 1.6095 (TP6 + IN56)/TP5 0.7531 |TDT| 0.93(TP2 + TP3 + TP4)/ΣTP 0.5830 |ODT| 2.071

The above-mentioned descriptions represent merely the exemplaryembodiment of the present disclosure, without any intention to limit thescope of the present disclosure thereto. Various equivalent changes,alternations or modifications based on the claims of present disclosureare all consequently viewed as being embraced by the scope of thepresent disclosure.

What is claimed is:
 1. An optical image capturing system, from an objectside to an image side, comprising: a first lens element with a positiverefractive power; a second lens element with a refractive power; a thirdlens element with a refractive power; a fourth lens element with arefractive power; a fifth lens element with a positive refractive power;a sixth lens element with a negative refractive power and at least oneof an image-side and an object-side surfaces of the sixth lens elementhaving at least one inflection point; and an image plane; wherein theoptical image capturing system comprises the six lens elements withrefractive powers, at least one of the second through fifth lenselements has a positive refractive power, an object-side surface and animage-side surface of the first lens element are aspheric, anobject-side surface and an image-side surface of the sixth lens elementare aspheric, focal lengths of the first lens through sixth lenselements are f1, f2, f3, f4, f5 and f6, respectively, a focal length ofthe optical image capturing system is f, an entrance pupil diameter ofthe optical image capturing system is HEP, half of a maximal view angleof the optical image capturing system is HAF, a distance from theobject-side surface of the first lens element to the image plane is HOS,and the following relation is satisfied: 0≦|f/f1≦2, 1.2≦f/HEP≦2.8,0.4≦|tan(HAF)|≦1.5 and 0.5≦HOS/f≦2.5.
 2. The optical image capturingsystem of claim 1, wherein the following relation is satisfied:|f2|+|f3|+|f4|+|f5|>|f1|+|f6|.
 3. The optical image capturing system ofclaim 1, wherein TV distortion for image formation in the optical imagecapturing system is TDT and the following relation is satisfied:|TDT|<1.5%.
 4. The optical image capturing system of claim 3, whereinoptical distortion for image formation in the optical image capturingsystem is ODT and the following relation is satisfied: |ODT|≦2.5%. 5.The optical image capturing system of claim 1, wherein a distance fromthe object-side surface of the first lens element to the image-sidesurface of the sixth lens element is InTL and the following relation issatisfied: 0.6≦InTL/HOS≦0.95.
 6. The optical image capturing system ofclaim 1, wherein a total central thickness of all lens elements withrefractive powers on the optical axis the is ΣTP, a distance from theobject-side surface of the first lens element to the image-side surfaceof the sixth lens element is InTL, and the following relation issatisfied: 0.45≦ΣTP/InTL≦0.95.
 7. The optical image capturing system ofclaim 1, wherein a distance in parallel with an optical axis from amaximum effective diameter position to an axial point on the image-sidesurface of the sixth lens element is InRS62, a central thickness of thesixth lens element on the optical axis is TP6, and the followingrelation is satisfied: 0≦InRS62/TP6≦3.
 8. The optical image capturingsystem of claim 1, further comprising an aperture stop, wherein adistance from the aperture stop to the image plane on an optical axis isInS and the following relation is satisfied: 0.6≦InS/HOS≦1.1.
 9. Theoptical image capturing system of claim 8, further comprises an imagesensing device disposed on the image plane, half of a diagonal of aneffective detection field of the image sensing device is HOI, and thefollowing relation is satisfied: HOS/HOI≦3.
 10. An optical imagecapturing system, from an object side to an image side, comprising: afirst lens element with a positive refractive power; a second lenselement with a negative refractive power; a third lens element with arefractive power; a fourth lens element with a refractive power; a fifthlens element with a positive power; a sixth lens element with a negativerefractive power and at least one of an image-side and an object-sidesurfaces of the sixth lens element having at least one inflection point;and an image plane; wherein the optical image capturing system comprisesthe six lens elements with refractive powers, at least one of the thirdthrough fifth lens elements has a positive refractive power, anobject-side surface and an image-side surface of the first lens elementare aspheric, an object-side surface and an image-side surface of thesixth lens element are aspheric, focal lengths of the first lens throughsixth lens elements are f1, f2, f3, f4, f5 and f6, respectively, a focallength of the optical image capturing system is f, an entrance pupildiameter of the optical image capturing system is HEP, half of a maximalview angle of the optical image capturing system is HAF, a distance fromthe object-side surface of the first lens element to the image plane isHOS, TV distortion and optical distortion for image formation in theoptical image capturing system are TDT and ODT, respectively, and thefollowing relation is satisfied: 0≦|f/f1≦2, 1.2≦f/HEP≦2.8,0.4≦|tan(HAF)|≦1.5, 0.5≦HOS/f≦2.5, |TDT|<1.5%, and |ODT|≦2.5%.
 11. Theoptical image capturing system of claim 10, wherein a distance inparallel with an optical axis from a maximum effective diameter positionto an axial point on the image-side surface of the sixth lens element isInRS62, a central thickness of the sixth lens element on the opticalaxis is TP6, and the following relation is satisfied: 0<|InRS62|/TP6≦3.12. The optical image capturing system of claim 10, wherein a distancein parallel with an optical axis from a maximum effective diameterposition to an axial point on the image-side surface of the fifth lenselement is InRS52, a central thickness of the fifth lens element on theoptical axis is TP5, and the following relation is satisfied:0<|InRS52|/TP5≦5.
 13. The optical image capturing system of claim 10,wherein the image-side surface of the sixth lens element comprises atleast one critical point C which is tangent to a plane perpendicular tothe optical axis, a distance perpendicular to the optical axis betweenthe critical point C and the optical axis is HVT62, and the followingrelation is satisfied: 0<HVT62/HOS≦1.
 14. The optical image capturingsystem of claim 11, wherein a reference point is a position on theoptical axis projected perpendicularly by an inflection point on theimage-side surface of the sixth lens element, a distance in parallelwith an optical axis from an axial point on the image-side surface ofthe sixth lens element to the reference point is Inf62, and thefollowing relation is satisfied: 0<Inf62/|InRS62|≦120.
 15. The opticalimage capturing system of claim 10, wherein a distance in parallel withan optical axis from a maximum effective diameter position to an axialpoint on the object-side surface of the sixth lens element is InRS61, adistance parallel with an optical axis from a maximum effective diameterposition to an axial point on the image-side surface of the fifth lenselement is InRS52, and the following relation is satisfied: 0mm≦|InRS52|+|InRS61|≦5 mm.
 16. The optical image capturing system ofclaim 10, wherein a total central thickness of all lens elements withrefractive powers on an optical axis the is ΣTP, a central thickness ofthe third lens element on the optical axis is TP3, a central thicknessof the fourth lens element on the optical axis is TP4, a centralthickness of the fifth lens element on the optical axis is TP5, and thefollowing relation is satisfied: 0<(TP3+TP4+TP5)/ΣTP≦0.85.
 17. Theoptical image capturing system of claim 10, wherein a distance from thefirst lens element to the second lens element on an optical axis is IN12and the following relation is satisfied: 0<IN12/f≦0.25.
 18. The opticalimage capturing system of claim 10, wherein a distance from the firstlens element to the second lens element on an optical axis is IN12, acentral thickness of the first lens element on the optical axis is TP1,a central thickness of the second lens element on the optical axis isTP2, and the following relation is satisfied: 1≦(TP1+IN12)/TP2≦10. 19.An optical image capturing system, from an object side to an image side,comprising: a first lens element with a positive refractive power havinga convex object-side surface adjacent to an optical axis; a second lenselement with a negative refractive power; a third lens element with anegative refractive power; a fourth lens element with a positiverefractive power; a fifth lens element with a positive refractive power;a sixth lens element with a negative refractive power having a concaveimage-side surface adjacent to the optical axis and at least one of animage-side and an object-side surfaces of the sixth lens element havingat least one inflection point; and an image plane; wherein the opticalimage capturing system comprises the six lens elements with refractivepowers, an object-side surface and an image-side surface of the firstlens element are aspheric, an object-side surface and an image-sidesurface of the sixth lens element are aspheric, focal lengths of thefirst lens through sixth lens elements are f1, f2, f3, f4, f5 and f6,respectively, a focal length of the optical image capturing system is f,an entrance pupil diameter of the optical image capturing system is HEP,half of a maximal view angle of the optical image capturing system isHAF, a distance from the object-side surface of the first lens elementto the image plane is HOS, TV distortion and optical distortion forimage formation in the optical image capturing system are TDT and ODT,respectively, and the following relation is satisfied: 0≦|f/f1≦2,1.2≦f/HEP≦2.8, 0.4≦|tan(HAF)|≦1.5, 0.5≦HOS/f≦2.5, |TDT|<1.5%, and|ODT|≦2.5%.
 20. The optical image capturing system of claim 19, whereina ratio f/fp of the focal length f of the optical image capturing systemto a focal length fp of each of lens elements with a positive refractivepower is PPR, a ratio f/fn of the focal length f of the optical imagecapturing system to a focal length fn of each of lens elements with anegative refractive power is NPR, a sum of the PPR of all lens elementswith positive refractive powers is ΣPPR, a sum of the NPR of all lenselements with negative refractive powers is ΣNPR, and the followingrelation is satisfied: 0.5≦ΣPPR/|ΣNPR|≦2.5.
 21. The optical imagecapturing system of claim 19, wherein a distance in parallel with anoptical axis from a maximum effective diameter position to an axialpoint on the image-side surface of the sixth lens element is InRS62, acentral thickness of the sixth lens element on the optical axis is TP6,a distance parallel with an optical axis from a maximum effectivediameter position to an axial point on the image-side surface of thefifth lens element is InRS52, a central thickness of the fifth lenselement on the optical axis is TP5, the image-side surface of the sixthlens element comprises at least one critical point C which is tangent toa plane perpendicular to the optical axis, a distance perpendicular tothe optical axis between the critical point C and the optical axis isHVT62, and the following relation is satisfied: 0<|InRS62|/TP6≦3,0<|InRS52|/TP5≦5, and 0<HVT62/HOS≦1.
 22. The optical image capturingsystem of claim 19, further comprising an aperture stop, an image plane,and an image sensing device disposed on the image plane, wherein adistance from the aperture stop to the image plane on an optical axis isInS and the following relation is satisfied: 0.6≦InS/HOS≦1.1.
 23. Theoptical image capturing system of claim 22, wherein length and width ofthe image sensing device are L and B, respectively, length of diagonalof the image sensing device is Dg, and the following relation issatisfied: Dg≦1/1.2 inch and L/B=16/9.
 24. The optical image capturingsystem of claim 22, wherein at least 8 million pixels are arranged onthe image sensing device, the pixel size of the image sensing device isPS, and the following relation is satisfied: PS≦(1.4 μm)².